Locking the "VOD Download" tab when a video is downloading.

[HellbringerOnline]

Checklist

• [X] I have checked the issue page for duplicates
• [X] I am running the latest version (download here)

Edition

Windows GUI Application

Describe your issue here

When I click Download button on the VOD Download tab instead of Unqeue download, I can't download any more videos until the current one is downloaded. New downloads should be forcibly added to the queue so I can enter a link to the next video.

Add any related files or extra information here

No response

[ScrubN]

This is planned functionality but would require a big rewrite so I'm pushing it onto the planned new UI.